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Impaired Vision/Hear
Test II, N101
| Question | Answer |
|---|---|
| Layer of blood vessels between retina and sclera | Choroid |
| can see chgs with some illnesses such as diabetes | Choroid |
| Clear front window in front of eye which transmits or focuses light into eye | cornea |
| Affects near & far sight | Cornea |
| Sharpens vision | Fovea |
| Center of macula which provides sharp vision | Fovea |
| Area in retina that has special light-sensitive cells which allow us to see fine details clearly in the center of our visual field | Macula |
| Deterioration of macula, as we age, leads to | macular degeneration |
| Fine Details | Macula |
| Colored part of eye which helps regulate amount of light entering eye | Iris |
| iris closes pupil to let in less light | bright light |
| iris opens pupil to let in more light | low light |
| Nerve layer lining the back of the eye | retina |
| senses light and creates electrical impulses sent through the optic nerve to the brain | retina |
| White, outer coat of eye which surrounds iris | sclera |
| Clear, gelatinous substance filling central cavity of the eye | vitreous humor |
| Focuses light rays into retina | lens |
| Transparent and can be replaced | lens |
| ____ makes lens deteriorate, resulting in need for reading glasses | aging |
| used to replace lens clouded by cataracts | Intraocular lens |
| Bundle of nerve fibers carry visual images from the retina to the brain | optic nerve |
| Dark center in the middle of the iris | Pupil |
| _____ -> Bundle of Nerve Fibers (visual images) -> brain | Retina |
| uniform red reflex, clear and yellow optic nerve disc, reddish retina, and light red arteries and dark red veins | Normal findings |
| Cloudiness of lens, changes in shape or size of blood vessels and changes in color and surface characteristics | Abnormal findings |
| normal visual acuity measured at a distance of 20 feet | 20/20 vision |
| means you must be as close as 20 feet to see what a person with normal vision can see at 100 feet | 20/100 vision |
| only indicates the sharpness or clarity of vision at a distance | 20/20 vision |
| inability to bring nearer objects into focus (farsightedness) | hyperopia |
| loss of focusing ability | Presbyopia |
| can see items that are close, but cannot see those far away. (nearsightedness) | Myopia |
| Vision gets worse over time | myopia |
| vision tends to get better over time | hyperopia |
| measures the ability to see close up, 14 inches from the eye | near vision |
| measures the eyes' need for corrective lenses (refractive error) | Refraction test |
| nearsightedness or farsightedness, when light rays entering the eye can't focus exactly on the nerve layer (retina) at the back of the eye | Refractive errors |
| Snellen’s Eye Chart | Visual Acuity |
| Most common disease treated by eye physicians | Dry Eye Syndrome |
| Leaking vessels lead to swelling or edema in retina and decreased vision | Diabetic Retinopathy |
| Clouding of natural lens | Cataracts |
| Increased intraocular pressure (IOP) resulting in malformation or malfunction of eye’s drainage symptoms | Glaucoma |
| Degenerative disease of macula (central retina) | Macular Degeneration |
| Vitamin beneficial | zinc |
| Auricle, pinna | Outer ear |
| External auditory meatus ,ear canal | Outer Ear |
| Tympanic membrane, eardrum | Outer Ear |
| _________ separates external ear from inner ear | Eardrum |
| Malleus/hammer Incus/anvil Stapes/stirrup | Ossicles |
| Ossicles | Middle Ear |
| Transfer vibrations to the inner ear | Middle Ear |
| ______ houses true mechanism of hearing, the Organ of Corti which contains tiny hair like nerve endings | Cochlea |
| Cochlea houses true mechanism of hearing, the _____ __ ______ which contains tiny hair like nerve endings | Organ of Corti |
| Transfer sound to the brain | Nerve Endings |
| Cochlea & Organ of Corti | Inner Ear |
| Growths within outer ear (resemble bumps or pimples). | Aurual Polyps |
| Allergies from foreign objects (earrings, cosmetics, shampoos,etc). Remove allergen. | Contact Dermatitis |
| traps debris & microorganisms, contains immunoglobulins for immunity, provides moisture for tympanic membrane | Ear Wax |
| can affect hearing. Usually caused by wax | Blockages in external ear |
| middle ear infection | Otitis media |
| Symptoms: earache, headache, fever, discharge from ear, mild deafness, difficulty sleeping, decreased appetite | Otitis media |
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lost little girl
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